P O http://iconclass.org/47G5331%28%2B35%29

reinforced concrete ~ building material (+ parts of machines ~ crafts, industries, agriculture)

TTL NT
S P O skos:broader
S P O http://iconclass.org/47G5331%28%2B3%29
S P O skos:prefLabel
S P O reinforced concrete ~ building material (+ parts of machines ~ crafts, industries, agriculture)